"When the president acts in absence of a congressional grant of authority, he can rely only upon his own independent powers. When the president takes measures incompatible with the express or implied will of Congress, his power is at its lowest ebb."

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It was President [Bill] Clinton and the United States congress in 1998 which said that the regime has to be changed because the regime would not give up its weapons of mass destruction. We came into office in 2001 and kept that policy because Saddam Hussein had not changed.

— Colin Powell